2. Bellroy Leather Card Sleeve Wallet Cocoa(Click Link to Check Price on Amazon)Editor’s Rating : 8.8 out of 10The Card Sleeve is the slimmest style in the Bellroy arsenal. It can be used as a business card holder, or even as a full-time wallet for those who have a black belt in slimming their pocket contents. The main section features a pull tab for easy storage of cards and money, while the outside pockets can be used for quick-access items.Our Card Sleeve is the perfect second wallet that allows you to carry overflow cards alongside your everyday wallet. Keep it in your bag or desk drawer and access those cards when you need.